Have you tried the flat “no roll” style sinkers? I found I could use less weight just by having a weight that didn’t roll. But I also figured out that boat position was even more important to keep a bait where I wanted it. I bought two no roll sinker molds. 2-5 oz and 6 & 8 oz I made a pile of weights and it paid for itself quick. But lead was pretty easy to get then.